Sinsing Analysis of Linux auto-get IP settings

The first step is to activate the network card, usually the system is installed after the default network card is eth0, we only need to use ifconfig eth0 up to activate it.

The second step is to set the network card into the system to start, we use Chkconfig--level 2345 Network on it.

The third step is to modify the network card file, we only need to set the value of Onboot is true, set the value of Bootproto is DHCP, where onboot is to let the network service start using the NIC, and Bootproto is to let the NIC from the DHCP server automatically obtain the IP address.

This NIC file is usually located in/etc/sysconfig/network-scripts/ifcfg-eth0, which we usually set as follows:

Vi/etc/sysconfig/network-scripts/ifcfg-eth0 ONBOOT=YESBOOTPROTO=DHCP

Then we can use service network start to start the network.

For static IP address configuration We give an example:

Device=eth0ipaddr=192.168.1.100netmask=255.255.255.0gateway=192.168.1.1dns=8.8.8.8bootproto=staticonboot=yes

Sinsing Analysis of Linux auto-get IP settings